Audio Interface Module for Eurorack Modular System, Two balanced input and output channels (1 jack each and 1 XLR), Three-stage switchable input and output volume 0 / -6 / -12 dB and 0/6/12 dB, Audio transformer for galvanic isolation, Width: 14 HP, Depth: 56 mm, Power consumption: +20 mA (+12 V) / -20 mA (-12 V)